Crushing-machine.



E. B. lsYMoNs. GRUSEING MACHINE.

APPLICATION FILED APR.17, 11911. 1,010,977. Patented 1396.5, 191.1.

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E. B. SYMONS.

GRUSHING MACHINE.

APPLIOATIQN FILED 1113.17. 1911.

Patented Dec. 5, 1911.

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EDGAR is. sYivioNs, or MILWAUKEE, wisconsin.

CBUSI-IINGr-MACHINE. y

Specication of Letters Patent.

Patented Dec. 5, 1911.

" Application med Apri117, 1911. l serial No. 621,483.

grammatically in one form in the accomp-anying drawings, wherein- Figure 1 is an end view with the parts re-- moved; Fig. 2, a. Vsection along the line 2-2 of Fig. l; Fig. 3, a section along the linel 3 3 of Fig. 2. Like parts are indicated by like letters `vthroughout the several figures.

The hollow shaft A which is rotatably mounted in the' bearings A1 driven by the pulley A2 and held against longitudinalemotion therein by the collar As and shoulder A4, terminates at one end in the bowl shaped member A5 having the flange A6 thereabout and containing the spherical anti-friction lining A". The shaft A8 is located within the shaft A but extends beyond the end thereof and carries at one end` the spherical head'A9 in opposition to the lining A7 and has at the other end a sleeve A1o held by the nut A11 against a spherical surface A12 at the end vof the shaft A, drawn aboutthe same center as the spherical lining A1. The outer bearing A1 carries the outwardly extending fixed bearing sleeve A13 within ,which rotates the eccentric sleeve A14 -driven by the pulley A1*s and rotating about the sleeve A10. The sleeve A18 is provided at its outer end with the {1a-nge A16 in which is the L shapedoilfpassage A17 dischaging into the conduit A18 and inclosing the flange A19 on the hub of the pulley A15 to discharge"- oil into the base of the machine. The head l 5A carries the disk shaped crushing member B-in opposition to a disk shaped crushing B2 which is slidably mounted within the annular ring B3 being held therein against the removable shims B4: by the cap screws B5.. The annular 'ring' B3 is supported upon the flange Ae by the bolts B6 surrounded by the removable sleeves B7. The lugs C pro- ',ject outwardly on either side from the base C1 and carry the parallel horizontally disposed rods C2 upon each of which is hinged .one section 4of the hood orj casing C, `which them together. Thehood sections C1 carry upon their inner sides the curved wearing shields C? placed end to end about the periphery of the crushing. plates and held in position by the side members C7 which are recessed upon their inner sides to engage the shield C and provided on their outer side with the spaced lugs C8V bolted to the wall of the hood C3.- The chute C9 is mounted' upon the frame C10 which is slidably mounted upon the rods C2 and provided with the bolts C11 to engage the slots C12 in the lugs C13 projecting from the side wall of the hood C3.

It will be evident that while I have shown lin my drawings an operative device, still many changesmight be made in size, shape and arrangement of parts without departing materially from the spirit of my invention, and I' wish. therefore,- that my drawings be regarded in a sense diagrammatic.

The use and operation of my device are as follows: In the form of disk crusher in which are two shafts at an angle one with the other carrying crushing disks at an angle one with the other and rotating in unison, it will be evident that there will be as many crushing strokes per minute as the shafts make revolutions perminute, andin order to =increase the capacity of the machine the number of crushing strokes per minute must be increased. A point is soon reached at which the rotation of the shaft is so rapid that the bearings are heated up and that are each provided at the top with the o posed lugs ,C1 engaged by the bolt C5 to ho d the surfaces against which the crushed `material is centrifugally discharged are worn way with undue rapidity by the violent 2chtact of the crushed material against thenri.l In order to obviate this diiiculty I `provide means whereby the number of crushing strokes per minute may be increased .in-

dependent of the rotational speed of the crushing disks. This'is done by continuing the inner solid shaft out beyond the end of the outer shaft an'd mounting it in an eccentric sleeve which rotates in xed bearings about an axis parallel with the axis of rotation of the main bearings of the machine. As this sleeve rotates it gives to the -inner shaft a gyratory motion causing the V-crushing disks to approach towardpand recede fromone another as they rotate. It will be evident that this result will be .obtained in dependent of the direction-of the rotation of the eccentric sleeve. I prefer however, to rotate it in the opposite direction since I find that the number of crushing strokes is thereby increased. I also provide means for compensating for the Wear caused by the rapidly moving crushed particles as they are centrifugally discharged. The holding bolts which take the crushing strain and connect the members holding the two crushing disks are inclosed in collars or sleeves which may be conveniently removed. In Fig. 3 I have shown some of these sleeves which have been partially worn down and which have been rotated, turning a new .face toward the crushing disks. It will thus be evident that they may be worn about their entire periphery before they need be renewed. I provide also a hood or casing which is rotatably mounted and may be swung down away from the crushing head when it is desired to inspect or adjust it. I mount upon this hood or casing a plurality of curved wearing shields against which the crushed material discharges and which may be removed whenworn out and replaced by new members. I provide means for adjusting the distance between the crushing disks comprising shims between the holding ring and the supporting back, which shims may be removed or other shims added as the case may be. The position of the feeding chuteJ may be adjusted to correspond with the position of the crushing disk by sliding it upon the bars which project from the face of the machine and locking it in position by bolting the frame which carries it to lugs projecting from the hood or casing.

I reserve so much of the subject matter of this application as relates to the hood and its associated parts for a divisional application.

The apparatus here shown is not of course indispensable for all sizes of machines or for all kinds of work but in many cases the acceleration of the stroke here provided for is highly desirable.

The eccentric sleeve rotates within a fixed bearing. therefore the friction on the outside of the eccentric sleeve is only that friction which results from the rotation of the sleeve itself. The inner shaft rotates within the eccentric sleeve and in the opposite direction and here there will be a much greater friction resistance because the difference between the velociti'esof the rubbing surfaces will be much greater than the difference between the velocities of the rubbing surfaces on the outside of the sleeve. The fixed hearing in which the sleeve rotates may be easily got at for the purpose of cooling and lubricating these bearing surfaces, which would not be the case were the sleeve placed inside of the outer shaft. The two shafts rotate in the same direction being driven by the pulley A2 the inner shaft being carried with the outer by reason of the frictional engagement of their two bearing surfaces and the material between their crushing disks. The bearings for the sleeve and for the inner shaft are carried on one and the same frame.

I claim:

1. In a crushing machine the combination with two opposed rotating crushing disks of inner and outer shafts by which said disks are carried, the inner shaft projecting beyond the' outer at one end, an eccentric bearing for said inner shaft on the same removed from the outer shaft and means for rotating said eccentric bearing independently of said shafts.

2. In a crushing machine the combination with two opposed rotating crushing disks of inner and outer shafts by which said disks are carried, an eccentric bearing for said inner shaft comprising a rotatable sleeve, on the inner shaft and means for rotating it and a fixed bearing in which such eccentric sleeve rotates.

3. In a crushing machine the combination with two opposed rotating crushing disks of inner and outer shafts by which said disks are carried, an eccentric sleeve for the said inner shaft, a bearing-held against rotation within which 4such sleeve is received and means for rotating said sleeve within its bearing.

4. In a crushing machine the combination with two opposed rotating crushing disks of inner and outer shafts by which said disks are carried, the inner shaft projecting beyond the outer at one end, an eccentric bearing for said inner shaft on the same removed from the outer shaft comprising a iiXed bearing and an eccentric sleeve between such bearing and the projecting end of the'inner shaft and means for rotating said sleeve.

5. A crushing machine comprising a plurality of shafts, one within the other and rotating in the same direction with a bearing located beyond the end of the outer shaft and an eccentric sleeve within said bearing and upon the inner shaft and means for rotating the sleeve in a sense opposed to the rotation of the shafts. I

6. A crushing machine comprising a plurality of shafts one within the other a fixed main bearing for the outer shaft, a collar upon the inner shaft in opposition to one end of the outer shaft, an eccentric sleeve `rotating about said collar, a fixed bearing for saidsleeve and means for rotating the eccentric sleeve.

7. A crushing machine comprising a plu rality of shafts one within the other, a fixed main bearing for the outer shaft, a collar upon the inner shaft in opposition to one end of the outer shaft, an eccentric sleeve rotating about said collar, a fixed bearing for said sleeve and means for rotatiu the eccentric s1eeve,` the opposed ends o the collar and outer shaft being spherical.

8. A crushing machine comprising a frame, an outer cylindrical shaft mounted therein, -an inner shaft, the two connected at their respective ends by concentric spherical surfaces,.two opposed crushing disks carried one by each of said shafts, means for' rotating them together in the samevdirection, the inner shaft projecting 'at one end beyond the outer' shaft, fixed bearings mounted on theframe for the inner and the outer shafts and an eccentric sleeve between the inner shaft and its bearing and means 15 for rotating the samef'in'a sense opposed to .the rotation of the shaft.V

EDGAR B. s'YMoNs. 

